Silo construction



Nov. 15s, 19mv 1,516,320

A. l'. ANDERSON/` SILO CONSTRUCTION Filed' Feb. '18, 1924 2 shun-sneer 2J ATTORNEY.

Patented Nov. i8, i924.

UNITED stares ADOLI-I I. ANDERSON, 01.* ZUMBROTA, MINNESOTA.

SILO GDNS'IRUCTION.

Application filed February 18, 1924.

To @ZZ 107mm t may concern.'

Be it known that I, ADoLrH I. ANDERSON, a citizen of the United States,residing at Zumbrota` in the county of Goodhue and State of Minnesota,have invented certain new and useful Improvements in Silo Constructions,of which the following is a specification.

This invention relates to improved silo construction, and has for one ofits objects to improve the construction and increase the efficiency andutility of devices of this character.

Another object of the invention is to provide a device of this characterwhich provides a wall structure having insulating qualities to protectthe contents from frost, and to apply the protective features only whererequired.

l/Vith these and other objects in view the invention consists in certainnovel features of construction as hereinafter shown and described andthen specifically pointed out in the claims, and in the drawingsillustrative of the preferred embodiment of the invention.

Figure 1 is a vertical section of one of the improved structures.

Figure 2 is a transverse section on the line 2-2 of Figure 1.

Figure 3 is a transverse section on the line 3 3 of Figure 1.

Figure t is a sectional detail of a portion of the base or footingportion of the improved structure.

Figures 5 and 6 are detached perspective views of two forms of thecombined braces and ladder' steps.

In portions of the country subject to relatively low temperatures duringthe winter season, silos are generally filled during the month ofSeptember, and the contents settles about siX feet, and if the silo isthirtysix feet high, which is the average height, the contents wouldoccupy about thirty feet of the structure. rIhe feeding generally beginsfrom October first to November first, or before the weather issufficiently cold to subject the contents to freezing temperature.

The feeding up to this time will have reduced the contents of the siloof from five to ten feet, thus leaving from twenty to twenty five feetof silage, or about 15 to 20 feet above the ground line, and this amountonly requires protection from the frost, and the principal object of thepresent invention Serial No. 693,619.

is to provide a structure in which provision is made for protecting thecontents at the portion only where subject to the effects of frost.

The improved structure comprises a base or foundation 10 preferably ofconcrete or the like, and located below the surface of the ground. Thesilo structure includes a plurality of foot members 11 with reverselybevelled confronting ends, so that when engaged end to end they formpolygonal outline and rest upon the base portion 10. At the junctures ofthe members 11 vertical posts 12 are supported, and at their upper endsthe posts are united toform a support for a roof, represented as a wholeat 13. At suitable intervals the posts 12 are coupled by circular metalbands 14;, the latter preferably embedded in the inner faces of theposts, as indicated in Figure 3.

Bearing over the sides and outer face of each of the posts 12 is a stripof heavy wire screen material 15 bent into U shape transversely, and thespaces between the outer faces of the posts and the screen materialfilled with water proof plaster or cement, which hardens or sets into asolid mass. The posts thus constructed will be located at any requireddistance apart, and the members 11 will be proportioned to correspond tothe number of the posts employed.

A structure of any general diameter or capacity may be constructed byincreasing or decreasing thc number of lengths of the posts and thelengths of the base or foot members 11, as will be obvious.

The vertical walls of the structure Within the lines of the posts 12.are in three portions, a lower portion below the surface of the ground,indicated at 16, an intermediate portion extending for a distance abovethe surface of the ground, and offrost proof construction, and an upperportion extending to the roof 13 and not necessarily of frost proofconstruction.

Attached to the inner faces of the posts 12, and extending the fulllength to the roof 13, Athus including the portion below the groundline, are sheets of reinforced moisture proof plaster material indicatedconventionally at 17.

The material used for the general inner wall structure is preferably thematerial known as ribbed lath with moisture proof plastic material onboth sides of the lath as indicated.

Applied to the inner face of the material 17 for about twenty feet, moreor less, above the ground line, is a layer of felt material, indicatedat 18, and applied to the inner face of the felt material is anotherlayer of rib lath and its plaster coating and rep resented at 19. Thethree thicknesses of material 1718-and 19, form an effectual frost proofwall only where the contents of the structure are liable to be effectedby frost.

The doorway openings of the improved structure are defined by one pairof the posts 12, as shown in Figures 2 and 3, the latter forming thedoor jambe, and are preferably of greater width than the other posts andwith their confronting edges bevelled toward the interior of thestructure. The door sections are represented at 2O and are superposedwith their side edges reversely bevelled to correspond to and closelyengage the bevelled edges of the jamb members. rihe door sections areheld in closed position by the contents of the structure, and areremovable inwardly when the silage is removed.

Extending across the space between the j amb members opposite thejunctures of the door sections are tie bars or rods 2l, being preferablybolted or otherwise secured at the ends by bolts or the like to the jambmembers, the terminals of the rods being embedded in the concretematerial within the reinforcing members l5, as shown in Figures 2 and 3.

The member 21 may be in the form of flat bars perforated to receive thebolts as shown in Figures l, 2, 3 and 5, or in round rod form as shownin Figure 6, with bolt receiving terminal eyes, or other form aspreferred. i

The members 21 thus serve as tie members to hold the jamb members fromspreading, and also as ladder steps, to enable the operator to handlethe closures or doorsections, and also to support him while inserting orremoving the silage.

Applied to the outer faces of the members 17 and the U-shaped screenmembers l5 is a coating or layer of concrete or moisture proof plasticmaterial and indicated at 22, the plastic coating forming outwardlyprotruding vertical ribs having'- rounded outer faces, as indicated inFigures 2 and 3, the ribs forming pilaster like elements to reinforceand strengthen the structure.

By this arrangement a very strong and durable structure is producedwhich is frost and vermin proof and likewise insulated from either heator cold.

The wood and metal parts may be connected by any suitable means forinstance, by metal staples or the like and the structure may be any sizeor capacity.

The metal parts will be rendered noncorrodible in any suitable manner,for instance by galvanizing, or the like.

Having thus described the invention, what is claimed as new is zl.. Astructure of the class described comprising a base, a plurality ofsupporting posts rising from said base in spaced relation, a strip offoraminous material bent into U-shape transversely and attached to eachpost and extending outwardly, cementitious material disposed within theareas defined by the strips, an inner wall element bearing against theinner faces of the posts and a layer of cementitious materialbearingupon the outer face of the wall element and of the U-shaped strips andforming outwardly directed. pilaster like members eX- ternally of thestructure.

2. A structure of the class described comprising a base, a plurality ofsupporting posts rising from said base in spaced relation, a pluralityof annular bands connecting' said posts in spaced relation, a strip offoraminous material bent into U-shape transversely and attached to eachpost and e1:- tending outwardly, cementitious material disposed withinthe areas defined by the strips, an inner wall element bearing againstthe inner faces of the posts and of the bands, and a layer ofcementitious material bearing upon the outer faces of the wall elementand the bands, and of the U-shaped strips and forming outwardly directedpilaster like members externally of the structure.

3. A structure of the class described coml prising a base, a pluralityof supporting posts rising from said base in spaced relation, theconfronting edges of one pair .of said posts being bevelled inwardly,tie bars unitingsaid bevelled posts, a plurality of doors superimposedand having bevelled edges engaging the bevelled edges of said posts, astrip of foraminous material bent into U-shape transversely and attachedto each post and extending outwardly, cementitious material disposedwithin the areas defined by the strips, an inner wall element bearingagainst the inner faces of the posts, and a layer of cementitiousmaterial bearing Vupon the outer face of the wall elementv and oftheU-shaped strips and forming outwardly directed pilaster like members eX-ternally of the structure.

In testimony whereof, affix my signature hereto. l

ADOLPH I. ANDERSON.Y

